Driving mechanism for motor road-wheels.



W. LORENZ. DRIVING MECHANISM FOR MOTOR ROAD WHEELS.

APPLIOATION FILED MAR-l8, 1907. 91 5,367.

Patented Mar. 16, 1909.-

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W. LORENZ. DRIVING MECHANISM FOR MOTOR ROAD WHEELS.

' APPLICATION FILED MAR. 18, 1907. I 91 5,367. Patented Mar. 16, 1909. 2 SHBETB-SEBET 2.

\\Q n M To all whom it may concern:

WILHELM Lonenz, OF KARLSBUHE, GERMANY,

ASSIGNOR TO DAIMLER MOTOREN- GESELLSOHAFT, OF UNTERTURKHEIM, GERMANY.

DRIVING MECHANISM FOR MOTOR ROAD-WHEELS.

Be it known that I, WILHELM LORENZ, a subject of the Grand Duke of Baden, and

resident of 55/61 Kriegstrasse, Karlsruhe, in

Empire,

the Grand Duchy of Ba den, 'German have invented a new and useful Driving Mechanism for Motor Road-Wheels,of which the following isan exact specification.

This invention relates to self-prop elled vehi- 016s and has for its object a new driving mechanism for the divided axles of the road-wheels of the vehicle. It may be observed that this axle will hereinafter be called road-wheel axle and it is well known that in such driving arrangements the motor shaft operates "the road-wheel axles by means of a bevel-Wheel gear, which has bevel-wheels the diameters of Which are of i different sizes. The first mentioned bevel wheels engage with bevelwheels which also have diameters of difierent sizes. Many inconveniences occur in con nection with such an arrangement and structural difiiculties are to be overcome in building up motor vehicles having such a driving arrangement. A leading defect consists therein, that the differential bevel-wheels require a large inclosing casing and the power transmitted by the bevel wheels is not alike. 'In order to avoid these drawbacks according to the present invention the bevel wheels of the difl'erential gear the bevel wheels arranged on the road-wheel axles are of equal diameters. Owing to this arrangement the same power is transmitted tioned on lme C-D of Fi ally thedriving by both the driving bevel wheels and a relatively small casing can be used for inclosing the Wheels and mounting the latter therein. Further this arrangement allows the frame and spring sup orts of the vehicle to be kept low and the sta ility of the vehicle is thereby increased. r

In order to ma'ke my invention clear, reference is made to the accompanying drawings, in hich: a

Figure 1 is a vertical cross section of the driving mechanism according to line A-B of the Fig. 2, Fig..2 is a horizontal section of the driving mechanism on line CD. of the Fig. 1, Fig. 3 illustrates a detail being secg. 1, Fig. 4 illustrates the same detail on line EF of Fig. 1. igs. 5 and 6 are two spur-wheels in section, used in connection with the part as shown in Figs3 and 4. Fig. 7 shows diagrammatic- Specification of Letters Patent. Application filed March 18, 1907.

are of equal size and also i 0n the arrangement in connection Patented March 16, 1909. Serial no. ecaeza.

' with the road-wheels having inclined wheel planes, the illustration being seen in the direction of the arrow in Fig. 2, Fig. 8 is a modification of the construction, in regard to the road-Wheel axles.

' a is the motor shaft which may be driven in any suitable and known manner from the motor. The globular and toothed end i) of the shaft 1 en ages with the corre ondingly shaped end 0 the unionieces'c, lioth ends being mounted in the spierical bearin' b.

1e union-piece c is clearly illustrat in Figs. 3 and 4. On the front side of it there are fitted cylindrical projections or hubs c c and c 0 the hubs c c and c 0 being diametrically arranged opposite each other and of different lengths.

c are se mental rims and c are tri lugs, bothi piece and structure.

lar

serving for rendering rigid the mounted on the ubs c 0 respectively.

is an intermediate shaft inclined toward the axis of the road-wheel axles 0 72. under an angle which diflerentiates from 90 degrees. On the shaft 72v the bevel wheel Z is he ed meshing with the bevel wheel p of the an e 0 and affixed to the latter.

t is a hollow intermediate shaft inclosin-g the solid shaft h andloosely mounted on the latter by means of the antifrictionshell 1. shaft i is fixedly arranged thebevel wheel m being ofthe same size as the wheel Z and meshing with the bevel-wheel p being of equal size with the wheel p.

g is a cylindrical casing made integral with the shaft h. The casingiis provided with inner teeth g, which are in engagement with the spur-wheels d loosely mounted on the hubs c c.

7c is a second casing made inte rally with the hollow shaft 2' and fitted with an inner toothed rim f engaging with toothed wheels f loosely carried by the hubs 6 c As shown in Fig. 1 the planet wheels are of larger diameter than the long wheels d with which they planet wheels eing made integral with the union planet,

ringg while the.

gear with thenternally toothed This arrangement acts as follower-The driving motor shaft transmits its motion by shaft, two concentricall wheel in is permitted to mesh into the wheel p with the teeth on the lower side and the bevel wheel Z engages with its teeth on the" up er side with the bevel wheel 11. n the diagrammatical illustration of the Fig. 7 at ."1/ are the axis of the road-wheel axles,

the plane of which wheels is inclined to the vertical plane. y 1 represent the centers of the bevel wheels 1 and m according to :the

construction of the Fig. 2, wherein for simpliclt oi illustration the planes ol the roadwhee s are .iialicated vertical.

In the modification according to Fig. 8 the bevel wheels 19 and p are keyed on, the hollow shafts 0 and 7!, respectively, and the latter are mounted on a stationary shalt r which is provided with a hole or passage in its middle allowing the shait 7b to ass through. The passage may be adapte to serve as a journal-bearing for the shaft 11, but it may be widened so that the latter is enabled to move ireely therein.

lIavmg thus fully described 'the nature of my invention, what ll desire to secure by Letdriven. shal ts, a solid shaxl't passing through ters Patent ol' the United States is:

1. A driving mechanism for motor road wheels having in combination, a driving shaft intermediate c meentrically arranged shat'ting, a geared connection for said driving and intermediate shall-lug, bevel wheels of equal diameters on said intermediate shafting, driven shai'ts, bevel wheels of equal'diameters on said driven shai ts and each geared to one of said lirst mentioned bevel wheels.

2. A driving meclianismf forfmotor road wheels having in combination, a driving arranged intermediate sha'l ts, bevel whee s of equal diameters on said intermediate shafts, two driven sha'lts, bevel wheels of et ual diameters on said driven shafts and each geared to one of said first mentioned bevel wheels,'said intermediate and driving shafts being inclined to mm another at an angle other than a right angle.

3. A driving n iechanism for motor road wheels having in coml. ination, a driving sha'l't, two intermediate concentrically arranged shal'ts having housings with internally arranged teeth, a )lanet carrying mem- .ber coupled to the driving sha'l't,' planet wheels of dill'erent dian'ieter on said carrying member and gearing with said internally toothed housings, bevel wheels ol equal diameter on the intermedii-ite shal'ts, driven shalts, bevel wheels of equal diameters on the driven shal'ts each gcarmg with one of said first mentioned bevel wheels.

4. A driving mechanism l'or motor road wheels having in combination, a driving shal't, two intermediate concentrically arranged shal'ts having housings with internally arranged teeth, a planet carrying member coupled to the driving shalt, planet wheels of dill'erent diameter on said carrying member and gearing with said internall toothed housings, bevel wheels ol' equal d1- am'eter on the intermediate shal'ts, hollow said hollow shal'ts and inclosing one of said intermediate shal'ts, bevel wheels of equal- 

